Spot and flood light projector



May 26, 1931. J. LE,VY 1,806,906

SPOT AND FLOOD LIGHT PROJECTOR Filed dune 26, i950 f9 /9 161324 W /f I (a INVENTOR.

w d 6M 5 A TTORNEY Patented May 26, 1931 UNITED STATES PATENT OFFICE JOSEPH LEVY, or BROOKLYN, new YORK, .ASSIGNOR T0 cnnmunvmen'rme EQUIP- MENT', INC., OF NEW YORK, N. Y.,

A CORPORATION 01 YORK SPOT AND FLOOD LIGHT PROJECTOR Application filed June 26,

retaining-light modifying accessories, such as color frames, color boXes, color wheels and flickering effect mechanisms such as,

the so-called lobsterscopes or optiscopes, on conventional spotand flood light projectors or lanterns.

Among the objects of the invention is to provide an improved interlocking means for releasably retaining a light modifying accessory on spot or flood light projectors comprising few and simple parts, which shall positively secure and retain the accessory tothe light projecting apparatus in proper alignment, which shall permit easy and quick removal and replacement thereof. which shall beeheap to manufacture, and practical and eflicient to ahigh degree in use.

Other objects of this invention will in part be obvious and in" part hereinafter pointed out. i

The invention accordingly consists in the features of construction, combinations of elements and. airangement of parts which will he exemplified in the construction hereinafter described and of which the scope of application will be indicated in the following claims. i

In the accompanying drawings, in which is shown .one of the various possible illustrative embodiments of this invention.

Fig. 1 is a front elevational View of a conventional stand or hanging type of swingaloly mounted spot light projecting apparatus fitted with the color frame holder having an improved releasable retaining means embodying the invention.

- Fig. 2 is a fragmentary side elevational view showing the front end of said light projecting apparatus and the color frame holder, a portion of the casings of said apparatus and holder being broken away to expose the interior construction.

1930. Serial No. 463,852.

Fig. 3 is across-sectional view taken removed from the apparatus, corresponding to a cut taken online 3-3 in Fig. 1, and

F is afragmentary top plan view of said color .frame holder showing the improved spring closure and the releasable retaining means embodying the invention.

Referring in detail to the drawing, 10 denotes a conventional spot or flood light projector or lantern having a front side 10a formed with an opening 106 wherethrough light is projected from a suitable source (not shown) housed within the lantern in the wellnnderstood manner.

Said lantern 10 may be of the stand or hanging type and may be provided Witha suitable swivel fitting 11 to permit swinging the lantern for projecting the light in all directions. front side 1061. suitable means in the form of grooved slides 12 for demountably supporting a light modifying accessory, such as a color frame, color box, color wheel or flicker effect mechanism, such as a lobsterscope or optiscope in the path of the light being projected from the lantern opening 105. Said slides 12 each have projecting lugs 12awherethrough screws 13 pass for securing said slides in spaced parallel alignment adjacentthe lantern opening 101).

Only one form of light modifying accessory embodying the invention is here disclosed and is'seen to comprise a holder 14 adapted to have inserted therein color screens C of any conventional construction, said holder being provided with improved releasable fastening means for engaging and interlocking with the grooved slides 12 to retain said-"accessory against accidental Said' lantern also has on itstherethrough, the modification of the projected light being accomplished by the color frame C which is interposed between said casing walls 1 1a and 14?), as shown in Figs. 1 and 2. One of the end walls 16 between walls 14a and 14?) may be hinged, at 15, to the edge of the wall 14a to provide a removable closure or cover for the holder casing 14, the color frame C being inserted therein when said cover 16 is swung open. To retain the cover 16 shut for confining the color frame in holder 14, said cover may have a portion 16a thereof bent to extend along the front wall 14?). A ledge 16?) upstands from said portion 166; for engaging with a flat spring 17 secured at one end to the wall 14?) by rivets 18, the other end of said spring forming aresilient latch engaging with the cover ledge 16?).

Secured to the casing wall 145, for aligning the holder 14 between the grooved slides 12 with the lantern opening 101) there is provided the suitable fastening means in the form of flat springs 19 having one end 1964 of each permanently secured to said wall 146 by rivets 20. The other end 1% of each spring 19 forms a resilient structure extending outwardly from the wall 146 and carries a stop member 21 from which a locking flange 21a extends. Said stop members 21 interlock with the opposite ends 12?) of the slides 12, the flanges 21a engaging over the edge of the slide ends 12?), as shown in Figs. 1 and 2.

The practical application of the invention will now be apparent. Any light modifying accessory, such as for example, the holder 14, is provided with the improved releasable spring fastening means for retaining said accessory in proper position between the grooved slides 12. Thus when the holder 14 is mounted in position with the stop members 21 engaged with the ends of said slides 12, the holder will be in proper alignment to allow projected light to pass through the openings 14c and 14d. The holder 1st then cannot be accidently displaced from its aligned position no matter how much the lantern 10 is moved or swung about. The color frame C may be readily removed or replaced by simply releasing the cover 16 from its engagement with the spring 17 to permit swinging the latter open for giving access to the interior of the easing, as is readily understood. To remove the holder 1 1- from its mounted position on the lantern, the stop members at one end of the slides are simply depressed to allow shifting the holder along the grooved slides.

Any other light modifying accessories may also be provided with improved means as described above for fastening the holder 14; to the lantern 10. Accessories so constructed may be mounted on or dismounted from the lantern 10 in the same manner as described above for the holder 14.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved and which is well adapted to meet the conditions of practical -LISG.

As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a light modifying accessory adapted to be removably supported between a pair of grooved slides of a conventional light projecting apparatus, flat spring means secured to the accessory, and spaced projecting members carried on said means for engaging with one of said slides.

2. A light modifying accessory adapted to be removably supported between a pair of grooved slides of a conventional light projecting apparatus, said accessory having an opening adapted to align with the side of said apparatus through which. the light projects, and releasable spring means engaging the opposite end of one of said slides for retaining said accessory against movementfrom an aligned position with respect to the apparatus.

3. In a light modifying accessory adapted to be mounted between a pair of grooved slides of a light projection apparatus, a

holder comprising a casing having parallel spaced walls formed with openings adapted to permit the passage of light therethrough, said casing adapted to contain a light modifying element therein between said spaced walls whereby light from the projection ap- In testimony whereof I affix my signature.

JOSEPH LEVY. 

